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Did "caucasoid" features originate in Africa?
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[QUOTE]Originally posted by Ish Gebor: [QB] [QUOTE]Originally posted by capra: [qb] Here's some for you Ish Gebor: how many mutations are between the root of A and CDEF? how many mutations are between CDEF and the present? What's the difference between "a shorter time" and "no time"? Are you an undergraduate's programming project that he's forgotten about? [/qb][/QUOTE]That answer can be found in the chromosomes. lol Read my post prior to this one. I have to go now, have a nice day. [QUOTE]Originally posted by capra: [qb] Also mutations found in A and B are found in C and R and DE too! Wow! [/qb][/QUOTE]Yeah great isn't it? Cameroon? :eek: Weird. [QUOTE] [IMG]http://s28.postimg.org/5dskm5ccd/gr2.jpg[/IMG] Genotyping of a DNA sample that was submitted to a commercial genetic-testing facility demonstrated that the Y chromosome of this African American individual carried the ancestral state of all known Y chromosome SNPs. To further characterize this lineage, which we dubbed A00 (see Figure S1, available online, for proposed nomenclature), we sequenced multiple regions (totaling ∼240 kb) of the X-degenerate portion of this chromosome, as well as a subset of these regions (∼180 kb) on a chromosome belonging to [b]the previously known basal lineage A1b (which we rename here as A0).[/b] [/QUOTE]—Michael F. Hammer Fernando L. Mendez et al. An African American Paternal Lineage Adds an Extremely Ancient Root to the Human Y Chromosome Phylogenetic Tree [QUOTE][b] The deepest branching separates A1b from a monophyletic clade whose members (A1a, A2, A3, B, C, and R) all share seven mutually reinforcing derived mutations (five transitions and two transversions, all at non-CpG sites).[/b] To retain the information from the reference MSY tree13 as much as possible, we named this clade A1a-T (Figure 1).[b] Within A1a-T, the transversion V221 separates A1a from a monophyletic clade (called A2-T) consisting of three branches: A2, A3, and BT, the latter being supported by ten mutations [/b](Figure 1) http://ars.els-cdn.com/content/image/1-s2.0-S0002929711001649-gr1.jpg .[/QUOTE]—Fulvio Cruciani et al A Revised Root for the Human Y Chromosomal Phylogenetic Tree: The Origin of Patrilineal Diversity in Africa [/QB][/QUOTE]
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